0.4(z-0.5)=-0.1(z+12)

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Solution for 0.4(z-0.5)=-0.1(z+12) equation:


Simplifying
0.4(z + -0.5) = -0.1(z + 12)

Reorder the terms:
0.4(-0.5 + z) = -0.1(z + 12)
(-0.5 * 0.4 + z * 0.4) = -0.1(z + 12)
(-0.2 + 0.4z) = -0.1(z + 12)

Reorder the terms:
-0.2 + 0.4z = -0.1(12 + z)
-0.2 + 0.4z = (12 * -0.1 + z * -0.1)
-0.2 + 0.4z = (-1.2 + -0.1z)

Solving
-0.2 + 0.4z = -1.2 + -0.1z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '0.1z' to each side of the equation.
-0.2 + 0.4z + 0.1z = -1.2 + -0.1z + 0.1z

Combine like terms: 0.4z + 0.1z = 0.5z
-0.2 + 0.5z = -1.2 + -0.1z + 0.1z

Combine like terms: -0.1z + 0.1z = 0.0
-0.2 + 0.5z = -1.2 + 0.0
-0.2 + 0.5z = -1.2

Add '0.2' to each side of the equation.
-0.2 + 0.2 + 0.5z = -1.2 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + 0.5z = -1.2 + 0.2
0.5z = -1.2 + 0.2

Combine like terms: -1.2 + 0.2 = -1
0.5z = -1

Divide each side by '0.5'.
z = -2

Simplifying
z = -2

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